JP3270306B2 - Mobile communication system, mobile communication network and mobile communication device used in this system - Google Patents

Mobile communication system, mobile communication network and mobile communication device used in this system

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Publication number
JP3270306B2
JP3270306B2 JP23661595A JP23661595A JP3270306B2 JP 3270306 B2 JP3270306 B2 JP 3270306B2 JP 23661595 A JP23661595 A JP 23661595A JP 23661595 A JP23661595 A JP 23661595A JP 3270306 B2 JP3270306 B2 JP 3270306B2
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JP
Japan
Prior art keywords
mobile communication
intermittent reception
reception mode
communication
service
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP23661595A
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Japanese (ja)
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JPH0983427A (en
Inventor
正行 坂本
Original Assignee
株式会社東芝
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Application filed by 株式会社東芝 filed Critical 株式会社東芝
Priority to JP23661595A priority Critical patent/JP3270306B2/en
Publication of JPH0983427A publication Critical patent/JPH0983427A/en
Application granted granted Critical
Publication of JP3270306B2 publication Critical patent/JP3270306B2/en
Anticipated expiration legal-status Critical
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0219Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • Y02D70/00

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital car / mobile phone system and a simplified mobile phone system (PH).
The present invention relates to a mobile communication system such as S: Parsonal Handyphone System, and more particularly to a mobile communication system that employs an intermittent reception system in a mobile communication device in order to reduce power consumption during standby.

[0002]

2. Description of the Related Art Generally, in a mobile communication system, an intermittent reception system is employed in order to extend the use time of a mobile communication device using a battery as a power supply. In the intermittent reception method, during standby, each mobile communication device performs a reception operation by operating a reception circuit only during a control channel allocated to the mobile communication device, and does not perform a reception operation in other periods to reduce power consumption. It is a method to reduce.

For example, in a digital cellular phone system,
Many mobile communicators in the system are divided into groups,
An incoming control channel is assigned to these groups. FIG. 8 shows the channel configuration. One frame is composed of one shared channel F and eight paging channels P
1 to P8. Of these, the shared channel F is commonly assigned to all mobile communication devices, and a frame synchronization signal for establishing frame synchronization in the mobile communication device,
Used to send outgoing control channel numbers and other system information. On the other hand, the paging channels P1 to P1
P8 is individually assigned to the first to eighth groups of mobile communication devices, respectively, and is used to send an incoming call control signal to each group of mobile communication devices.

[0004] Each mobile communication device performs a reception operation only during the reception period of the frame synchronization channel F and the channel allocated to the group to which the mobile communication device belongs. For example, as shown in FIG. 8, each mobile communication device of the first group performs a reception operation by supplying power to necessary circuit parts such as a reception circuit only during the reception period of the frame synchronization channel F and the paging channel P1, and performs the other periods. Then, the power supply is cut off to stop the receiving operation. Further, each mobile communication device of the second group performs the receiving operation only during the receiving period of the frame synchronization channel F and the paging channel P2, and stops the receiving operation during the other periods. Similarly, the mobile communication devices of the third group and below perform the reception operation only during the reception period of the frame synchronization channel F and the paging channels P3 to P8 assigned to the own group, and stop the reception operation during the other periods. .

[0005] By performing such an intermittent reception operation, the mobile communication devices of each group can reduce the power consumption of the circuit to 2/9 as compared with the case where the reception operation is always performed during standby.

The channels F, P1 to P8 in FIG. 8 are logically configured channels, and each of them does not necessarily have to correspond one-to-one with a physical frame. For example, there is a case where one channel is transmitted by a plurality of physical frames, or a case where these physical frames are temporally continuous.

[0007]

By the way, in order to further reduce the power consumption of the mobile communication device at the time of standby, the number of mobile communication devices divided into groups is increased and the ratio of the intermittent reception time to the entire reception period is increased. That is, the intermittent reception rate may be reduced. However, if the intermittent reception rate is reduced, the intermittent reception cycle becomes longer, so that the timing of transmitting the incoming call control signal from the network is delayed, and so-called connection delay increases. If this connection delay becomes large, in the case of a communication service that requires immediacy, such as a telephone call, the caller may feel uneasy or, in some cases, erroneously recognize that the caller is out of order and stop calling. This is very undesirable. That is, in the related art, it has been difficult to achieve both the reduction in power consumption and the maintenance of serviceability by the intermittent reception method, and an effective measure has been desired.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to further reduce power consumption during standby in a mobile communication device, and to further reduce the power consumption from a mobile communication network to a standby mobile communication device. To reduce the unnecessary signal transmission and increase the effective use of the control channel .
To send necessary signals to a waiting mobile communication device
Transfer so that notifications can be sent without significant delay.
Connection delay between mobile communication networks and mobile communication devices
An object of the present invention is to provide a mobile communication system, a mobile communication network, and a mobile communication device having excellent responsiveness and serviceability .

A second object of the present invention is to further reduce the power consumption during standby by extending the intermittent reception cycle, and to reduce the adverse effect on the incoming call caused by extending the intermittent reception cycle. An object of the present invention is to provide a mobile communication system capable of maintaining good serviceability, a mobile communication network thereof, and a mobile station device.

[0010]

In order to achieve the first object, the present invention provides a mobile communication apparatus in which a plurality of types of intermittent reception modes having different intermittent reception periods are selectively set during standby. receiving means for performing intermittent reception operation, information relating to the intermittent reception mode set by the receiving means in an intermittent reception mode notifying means for notifying to the mobile communication network
In addition, an intermittent reception mode changing unit is further provided.
The intermittent reception mode changing means causes the
A request for changing the intermittent mode is received from the communication network, and the
According to the request, set the intermittent reception mode set in the above reception means
The mode is changed from a mode with a long cycle to a mode with a short cycle .

As a result, according to the present invention, if a mode with a short intermittent reception cycle is set for each mobile communication device, for example, during the daytime and a mode with a long intermittent reception cycle is set at night when traffic decreases. The nighttime power consumption of the mobile communication device can be further reduced, thereby at least one of extending the battery life and reducing the size and weight of the device by reducing the battery capacity.

Also in a mobile communication network, signal transmission is performed only at a transmission timing according to the intermittent reception mode being set for each mobile communication device, so that unnecessary signal transmission is not performed. This makes it possible to increase the effective use rate of the control channel.

Further, in the mobile communication system according to the present invention, a communication service determining means for determining a type of communication service requested by an originating side when an incoming call to each of the mobile communication devices occurs in the mobile communication network; Means for receiving, according to the determination result of the communication service determining means and the intermittent reception mode being set notified from the mobile communication apparatus of the destination, different types of incoming calls to the mobile communication apparatus. The processing is performed.

That is, the communication service includes a two-way simultaneous communication service in which a calling party and a called party simultaneously communicate in two directions, such as a voice telephone and a video telephone, and voice mail, facsimile, and text communication. There is a one-way communication service for transmitting data unilaterally from a calling side, such as image communication. Of these, the two-way simultaneous communication service cannot perform communication unless the called mobile communication device responds to the incoming call, but the one-way communication service can only handle the incoming call if there is an interception facility. It is possible to receive data without the mobile communicator necessarily responding.

The present invention focuses on the above points, and provides a mobile communication device with a plurality of types of intermittent reception modes having different periods so that the mobile communication device has a longer period in a relatively low traffic time period such as at night. The power consumption during standby is further reduced by setting. However, if an incoming call is generated during a period in which the intermittent reception mode having a long cycle is set, a large connection delay may occur or a connection may not be made substantially. Therefore, as a countermeasure, the mobile communication apparatus notifies the mobile communication network of the intermittent reception mode being set, and determines whether or not the long-period intermittent reception mode is set in the mobile communication apparatus in the mobile communication network. Then, when an incoming call arrives at the mobile communication device in which the long-term intermittent reception mode is set, it is determined whether the incoming call requires a two-way simultaneous communication service or a one-way communication service, When a one-way communication service is requested, for example, the incoming call is connected to a storage means such as a storage service server, and data sent from the calling side is stored in the storage means.

With this configuration, when an incoming call requesting a one-way communication service such as facsimile communication occurs when the long-term intermittent reception mode is set in the mobile communication device, the mobile communication device It is determined that there is no need to respond to the request, and the received data is stored in the storage service server. For this reason, even if the long-term intermittent reception mode is set in the mobile communication device, at least for an incoming call requesting a one-way communication service, it can be immediately and reliably performed without causing a large connection delay or an incomplete call. Data can be received in response. Therefore, it is not necessary for the caller to make a call again, thereby reducing the adverse effect on the caller.

Further, according to the present invention, when received data is stored in a storage service server or the like, various methods are provided for notifying the mobile communication device of the fact.

In the first method, when power is turned on in the mobile communication device or when the mobile communication device returns to the service area of the mobile communication network, the presence or absence of stored data addressed to the own device from the mobile communication device to the mobile communication network. When this inquiry arrives from the mobile communication device, the presence or absence of the corresponding stored data in the mobile communication network is determined, and the determination result is transmitted to the mobile communication device of the inquiry source.

In the second method, in a mobile communication network, the presence or absence of stored data is determined for each mobile communication device, and the presence or absence of valid control information to be transmitted to all mobile communication devices is determined. When there is no information, instead of this control information, each mobile communication device is notified of information indicating the result of the determination of the presence / absence of stored data.

In the third method, when a signal requesting a call or a signal requesting location registration arrives from a mobile communication device,
Alternatively, when an incoming call arrives at the mobile communication device, the presence or absence of stored data addressed to the mobile communication device is determined, and information representing the determination result is notified to the mobile communication device.

In the fourth method, the mobile communication device determines whether or not there is stored data addressed to itself in the mobile communication network in synchronization with the period of the intermittent reception mode being set or the timing generated based on this period. Inquiry, when this inquiry arrives, the presence or absence of the corresponding stored data in the mobile communication network is determined, and information representing the determination result is notified to the mobile communication device of the inquiry source.

In a fifth method, the mobile communication network is inquired at predetermined time intervals as to whether or not there is stored data addressed to its own device in accordance with timekeeping data of a clock function. The presence or absence of the corresponding stored data is determined, and the information indicating the determination result is notified to the mobile communication device of the inquiry source.

On the other hand, in another invention, the communication control means of the mobile communication network sets the type of communication service requested by the incoming call and the intermittent reception mode during setting notified from the destination mobile communication device. In response to this, information for instructing the mobile communication device to change the intermittent reception mode is transmitted to change the intermittent reception mode of the mobile communication device from a long period to a short period.

That is, if the generated incoming call is a two-way simultaneous communication service that requires the mobile communication device to respond to the call, if the long-term intermittent reception mode is set in the mobile communication device, the call is generated. No matter how many times a user makes a call, there is a large connection delay, and a smooth connection cannot be made.

Therefore, when an incoming call requesting a two-way simultaneous communication service is issued to a mobile communication device in which the long-period intermittent reception mode is set, the mobile communication network transmits the intermittent reception mode to the mobile communication device. To change the intermittent reception mode from a long cycle to a short cycle, or temporarily to a continuous reception mode.

In this way, when the caller once stops calling and calls back again, the short-term intermittent reception mode or the continuous reception mode is set in the destination mobile communication device. Therefore, a smooth incoming connection can be made without causing a large connection delay.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of a digital portable telephone system which is an embodiment of a mobile communication system according to the present invention. The system comprises a plurality of base stations BS geographically distributed within a service area.
, BS2,... And these base stations BS1, BS2,.
Are connected to the mobile communication control station CS connected via a wired line and the base stations BS1, BS2,... In the wireless zones Z1, Z2,.
Mobile communication devices P connected via a wireless channel to a plurality of mobile communication devices P
S1, PS2,...

The base stations BS1, BS2,... And the mobile communication control station CS constitute a mobile communication network, and the mobile communication control station CS is connected to another communication network NW such as a fixed wire network or another mobile communication network. Is done. The storage service server SV is connected to the mobile communication control station CS. The storage service server SV is used to store voice mail information and facsimile mail information addressed to the mobile communication devices PS1, PS2,.

The mobile communication devices PS1, PS2,... Are divided into eight groups.
The incoming call control and the location registration control for S1, PS2,... Are managed for each of these groups.

By the way, each mobile communication device P of this system
S1, PS2,... Are set as the intermittent reception mode during standby,
A first intermittent reception mode and a second intermittent reception mode are provided. The first intermittent reception mode is a mode in which the control channels transmitted from the base stations BS1, BS2,... Are intermittently received at a relatively short period T1 (for example, 1 second) that does not cause a problem such as a connection delay. On the other hand, the second intermittent reception mode intermittently controls the control channels transmitted from the base stations BS1, BS2,... At a long period T1 (for example, 480 seconds) suitable for a time zone in which traffic becomes extremely low such as at night. Mode.

Each of the mobile communication devices PS1, PS2,.
When one of the first and second intermittent reception modes is automatically set in accordance with the clock time of the clock circuit or when input is designated by a key operation of the user, the specified intermittent reception mode is used. At the same time as starting the intermittent reception operation, a procedure for notifying the mobile communication control station CS of the information of the intermittent reception mode is executed.

On the other hand, the mobile communication control station CS varies the transmission timing of the control channel to each of the mobile communication devices PS1, PS2,... According to the intermittent reception mode notified from each of the mobile communication devices PS1, PS2,. Set the timing.

FIGS. 2 and 3 show mobile communication control stations CS in the first and second intermittent reception modes, respectively.
Is a diagram showing an example of the transmission timing of the mobile communication devices PS1, PS2,...

The mobile communication control station CS has a control channel in a superframe configuration. That is, one superframe is composed of a superframe synchronization channel SF and eight time-division multiplexed frames. The superframe synchronization channel SF is connected to the mobile communication devices PS1, PS2,
.. Are used to transmit a super frame synchronization signal for establishing frame synchronization to all mobile communication devices.

One frame includes one long-period subframe and 60 short-period subframes L,
(L1-1 to L1-60). In other words, one superframe has eight long-period subframes M1 to M1.
M8 will be arranged at equal intervals. These sub-frames M1 to M8 are respectively assigned to the first to eighth groups of mobile communication devices, and have a long period T2 as an intermittent reception mode.
Is used to transmit an incoming call control signal or the like to the mobile communication device in which the mode is set.

The sub-frames L, (L1-1 to L
1-60) each include a frame synchronization channel F and eight paging channels P1 to P8, as shown in FIG. The frame synchronization channel F is used to supply a frame synchronization signal for causing the mobile communication device to establish frame synchronization, a transmission control channel number, and other system information to all mobile communication devices regardless of the group. . On the other hand, the paging channels P1 to P8 are individually assigned to the first to eighth groups of mobile communication devices, respectively, and the paging channels P1 to P8 are controlled by the mobile communication devices of each group in which the short cycle T1 mode is set as the intermittent reception mode. Used to send out signals and the like.

On the other hand, when the intermittent reception mode of the short period T1 is set, each group of the mobile communication devices receives the frame synchronization channel F and the paging channels P1 to P8 assigned to itself in the subframe period. Only the receiving operation is performed. For example, as shown in FIG. 2, the first group of mobile communication devices only receives the frame synchronization channel F and the paging channel P1 during the reception period, and the second group of mobile communication devices has the frame synchronization channel F and the paging channel P2.
The receiving operation is performed only during the receiving period of. Similarly the third
The mobile communication devices of the group to the eighth group perform the receiving operation only during the receiving period of the frame synchronization channel F and the paging channels P3 to P8.

On the other hand, when the intermittent reception mode of the long period T2 is set, each group of the mobile communication devices transmits the superframe synchronization channel SF and the long period subframe M1 assigned to the own group in one multiframe period. ~ M8
The receiving operation is performed only during the receiving period. For example, as shown in FIG. 3, the first group of mobile communication devices only receives the superframe synchronization channel SF and the long period subframe M1 during the reception period, and the second group of mobile communication devices displays the superframe synchronization channel SF and the subframe M2. The receiving operation is performed only during the receiving period of. Similarly, the third to eighth groups of mobile communication devices perform the receiving operation only on the superframe synchronization channel SF and the reception channel of the long-period subframes M3 to M8, respectively.

Further, the mobile communication control station CS performs an incoming call control using the storage service server SV and an incoming call control including a procedure for changing the intermittent receiving mode in accordance with the intermittent reception mode and the type of communication service at the time of the incoming call. It has a function to execute selectively.

The incoming call control using the storage service server SV is performed when an incoming call requesting a one-way communication service such as facsimile communication is issued to a mobile communication device set to the intermittent reception mode of the long period T2. Then, the storage service server SV is called without performing the incoming call processing to the mobile communication device, and the facsimile data sent from the calling side is stored in the storage service server SV. Also, when an inquiry about the presence or absence of stored data arrives from the mobile communication devices PS1, PS2,..., The presence or absence of the corresponding stored data is determined. The corresponding data is read from the mobile communication device and transmitted to the mobile communication device of the inquiry source.

The incoming call control including the procedure for changing the intermittent reception mode is performed for the mobile communication devices PS1, PS2,. When an incoming call requesting a communication service occurs, an instruction to change the intermittent reception mode from the long-period T2 mode to the short-period T1 mode is sent to the destination mobile communication device. Is changed to the short-period T1 mode.
At this time, the mobile communication device at the destination is notified of the occurrence of the incoming call, and a message for instructing the calling party to call again after a while is returned.

Next, the operation of the system configured as described above will be described with reference to the flowcharts shown in FIGS. In the mobile communication devices PS1, PS2,..., The short period T1 (T1
= 1 second) intermittent reception mode is set, for example, 10 pm
The long period T2 (T2
= 480 seconds), the intermittent reception mode is automatically set.
The setting of the switching time can be arbitrarily set by the user by operating the function key and the dial key. The setting of the intermittent reception mode can be arbitrarily set by operating the function key and the dial key by the user.

The mobile communication devices PS1, PS2,... Perform the intermittent reception operation of the incoming call control channel in the standby state according to the set intermittent reception mode. Further, the information on the set intermittent reception mode is notified to the mobile communication control station CS via the base stations BS1, BS2,... By using the call control channel, and the mobile communication control station CS is notified of the information. Set the intermittent reception mode to the mobile communication devices PS1, PS
Are set in a period corresponding to the stored intermittent reception mode for the mobile communication devices PS1, PS2,. Is used to transmit an incoming call signal or the like.

In this state, when an incoming signal addressed to the mobile communication device PSi accommodated in the own system arrives from another communication network NW, the mobile communication control station CS first moves in step 4a as shown in FIG. It is determined whether the intermittent reception mode currently set in the communication device PSi is the short cycle T1 mode or the long cycle T2 mode.

If the intermittent reception mode of the short period T1 is being set, the process directly proceeds to step 4b, where an incoming call signal including the identification number of the mobile communication device PSi is transmitted. At this time, the transmission timing of the incoming call signal is set to the short-term T1 mode incoming call control channel assigned to the group to which the mobile communication device PSi belongs. For example, if the mobile communication device PSi now belongs to the first group, the paging channel P1 in each subframe L as shown in FIG.
Is set to The transmitted call signal transmitted in this way is relayed by the base station BSj where the mobile communication device PSi is registered, and then transmitted to the mobile communication device PSi.

In the mobile communication device PSi, the intermittent reception operation in the short cycle T1 mode is performed on the first group of paging channels P1 to which the mobile communication device belongs, as shown in FIG. Then, in this state, when an incoming call signal addressed to the own device arrives, the mobile communication device PSi proceeds from step 4d to step 4d.
The process proceeds to step e, where an incoming call response signal is transmitted via the control channel. When this call response signal is received, the base station B
Sj proceeds from step 4f to step 4g, where an empty channel is selected from a number of communication channels,
This free communication channel is notified to the mobile communication device PSi using the incoming call control channel.

Upon receiving the channel designation notification, the mobile communication device PSi switches its own communication channel to the communication channel in step 4h, and generates a sound or the like in step 4i to notify the user of an incoming call. And
In this state, off-hook monitoring is performed in step 4j, and when the user confirms the incoming call notification and performs an off-hook operation,
After the off-hook signal is relayed by the base station BSj, it is transferred to another communication network NW of the transmission source. As a result, the originating terminal and the destination mobile communication device PSi are connected via the communication link, and thereafter, communication between them is possible.

By the way, it is assumed that the incoming call response signal is not returned to the base station because the mobile communication device PSi is turned off, for example, or is out of the service area of the base station. Then, the base station BSj shifts from step 4f to step 41 and transmits a non-reception report to the mobile communication control station CS. Upon receiving the non-reception report, the mobile communication control station CS confirms the report in step 4m, and shifts to accumulation control described later.

It is also assumed that the intermittent reception mode being set in the destination mobile communication device PSi is a long period T2 mode.
In this case, the mobile communication control station CS judges that if the incoming call control is performed as it is, there is a possibility that the connection delay becomes too large and a normal incoming call operation cannot be performed, and the storage control using the storage service server SV or the intermittent reception cycle is performed. To change control.

That is, as shown in FIG. 5, the mobile communication control station CS first determines in step 5a whether the communication service requested by the caller terminal is a two-way simultaneous communication service such as telephone or videophone, or It is determined whether the service is a one-way communication service such as voice mail, facsimile mail, and data communication. If the service is a one-way communication service, the process proceeds to step 5b to determine whether or not the mobile communication device PSi is a contractor of the storage service. If not, the process proceeds to step 5g and the disconnection process is performed. Do.
At this time, a busy tone or the like is transmitted to the terminal of the transmission source.

Now, it is assumed that the mobile communication device PSi is a subscriber of the storage service. Then, the mobile communication control station CS thereafter executes accumulation control. That is, the process first proceeds to step 5c, where the storage service server SV is connected to the incoming call, and the caller terminal is connected to step 5d.
Sends a guide message prompting transmission of a message or the like. Then, in step 5e, the message or the like sent from the terminal on the transmitting side is stored in the storage service server SV. When the accumulation is completed, steps 5f to 5
The process proceeds to g, performs a disconnection process, and returns to the standby state.

In a state where control is impossible, the mobile communication device PSi receives a signal transmitted from the base station BSj through the incoming call control channel in step 6a as shown in FIG. It monitors whether it has returned to the controllable state. At this time, the mobile communication device P
Assuming that the Si is in the intermittent reception mode of the long period T2, the signal transmission by the above-mentioned incoming control channel is performed as shown in FIG.
Is transmitted only in the long-term T2 mode incoming call control channel assigned to the group to which the terminal belongs.

In this state, for example, when the power switch of the mobile communication device PSi is turned on or when the mobile communication device PSi returns to the service area, thereby receiving the incoming control channel from the base station BSj, the control is performed. It is determined that it has returned to the enabled state, and the process proceeds to step 6c, where it is determined whether or not the own device has contracted for the storage service. If the user has subscribed to the storage service, the process switches to the call control channel in step 6d, and then proceeds to step 6e, where a storage server access request signal is transmitted. If the user has not subscribed to the storage service, the process directly shifts to the normal standby control without transmitting the access request signal or the like. That is, useless signal transmission is not performed, and thus traffic on the control channel is not suppressed.

When the storage server access request signal is relayed by the base station BSj at step 6f and transmitted to the mobile communication control station CS, the mobile communication control station CS proceeds to step 6f.
From g, the process proceeds to step 6h, where it is determined whether or not the data addressed to the mobile communication device PSi of the access request source is stored in the storage service server SV. And
Assuming that the data has been stored, the process proceeds to step 6l, where the storage service server SV is connected to the mobile communication device PSi of the access request source, and in step 6m, a communication channel designation instruction is given to the base station BSj. Then, it instructs the storage service server SV to transmit a storage message.

Upon receiving the communication channel designation instruction,
In step 6n, the base station BSj selects an empty communication channel from a number of communication channels, and notifies the mobile communication device PSi of the empty communication channel using a call control channel. Upon receiving the communication channel designation, the mobile communication device PSi switches the call control channel to the communication channel in step 6o, and thereafter proceeds to step 6q to receive the stored message sent from the storage service server SV.

Thus, an inquiry about data storage from the mobile communication device PSi to the mobile communication control station CS, and transfer of stored data from the storage service server SV to the mobile communication device PSi in response to the inquiry are performed.

Next, the control for changing the intermittent reception cycle will be described. The mobile communication control station CS performs step 5 shown in FIG.
In a, when it is determined that the communication service requested by the caller terminal is a two-way simultaneous communication service such as a telephone or a videophone, the intermittent reception cycle change control is executed thereafter.
That is, as shown in FIG. 7, first, in step 7a, an intermittent reception cycle change instruction signal is transmitted using the incoming call control channel. This change instruction signal is transmitted from the base station BSj to step 7
When the mobile communication device PSi arrives by relaying by b, the process proceeds from step 7c to step 7d, where the intermittent reception mode being set for itself is changed from the long-period T2 mode to the short-period T1 mode. Then, in step 7e, a response signal to the change of the intermittent reception mode is returned, and thereafter, the process returns to the standby control.

This response signal is transmitted from the base station BSj to step 7
f, the mobile communication control station CS proceeds from step 7g to step 7h, where the changed intermittent reception mode is stored in association with the mobile communication device PSi, and thereafter, the standby control is performed. Return.

Note that the mobile communication control station CS sends a guide message prompting the caller terminal to restart the call during or after the end of the intermittent reception cycle change control. As this guide message, for example, “We are preparing to receive the message. The guide message may be a voice message output from a speaker of the calling terminal in a loud voice or a display message displayed on a liquid crystal display. When this display message is used, the light emitting diode may be blinked or a sound may be generated at the same time, so that the user may be more surely noticed.

Further, a guide message indicating that an incoming call has occurred is sent from the mobile communication control station CS to the destination mobile communication device PSi together with an intermittent reception cycle change instruction signal. When the guide message arrives, the mobile communication device PSi displays the guide message on, for example, a liquid crystal display after the end of the intermittent reception cycle change control. As this guide message, for example, "I will call soon. Please wait." Note that a ringing sound different from the ringing sound may be generated for a short time together with the display of the guide message. This allows the user of the mobile communication device to wait for an incoming call.

As described above, in this embodiment, the mobile communication devices PS1, PS2,... Are provided with two types of intermittent reception modes having different periods, and these modes are automatically switched and set according to time. It is set arbitrarily by the key operation of. Therefore, for example, during nighttime when traffic is low, the intermittent reception operation of the long period T2 can be performed, thereby reducing nighttime power consumption and further extending the battery life.

Further, the mobile communication control station CS notifies the mobile communication control station CS of the intermittent reception mode set for the mobile communication devices PS1, PS2,..., And the mobile communication control station CS notifies the mobile communication devices PS1, PS2 of the notified intermittent reception mode. ,..., And a signal is transmitted to the waiting mobile communication device by the incoming call control channel at a cycle corresponding to the set intermittent reception mode. Therefore, each mobile communication device PS1, P
The transmission of the incoming call signal and the like can be performed at the timing corresponding to the intermittent reception mode for each of S2,..., Thereby preventing unnecessary signal transmission and increasing the effective use rate of the incoming control channel. .

In this embodiment, when an incoming call arrives, the type of communication service requested by the incoming call and the intermittent reception mode set in the destination mobile communication device PSi are determined. Long period T
2 if the intermittent reception mode is set and the incoming call requests a one-way communication service such as voice mail or facsimile mail, the storage service server S
V is connected to accumulate data from the transmitting side. Therefore, even if the intermittent reception mode of the long cycle T2 is set in the mobile communication device PSi, an incoming call requesting a one-way communication service can be immediately and reliably established without causing a large connection delay or making an incomplete call. In response to the data. This eliminates the need for the caller to make a call again, thereby keeping the convenience of the caller high.

When the mobile communication device PSi is turned on or returns to the service area, the mobile communication device PSi transmits a storage server access request to the mobile communication control station CS, and the mobile communication control station CS Upon receiving this access request, determines whether data addressed to the corresponding mobile communication device PSi is stored. If the data is stored, the storage service server SV is connected to the mobile communication device PSi to transfer the stored data. Therefore, the mobile communication device PSi can automatically know the presence or absence of stored data addressed to itself when the power is turned on or when returning to the service area, and when there is stored data, the data can be automatically received. .

Further, in this embodiment, when the intermittent reception mode of the long period T2 is set in the mobile communication device PSi of the destination and the incoming call requests a two-way simultaneous communication service such as telephone or videophone. Sends an instruction to change the intermittent reception mode from the mobile communication control station CS to the mobile communication device PSi, thereby changing the intermittent reception mode from the long cycle T2 mode to the short cycle T1 mode. At that time, the caller is notified of a guide message for calling back after a while.

For this reason, when the caller once stops calling and calls again, the called mobile communication device PS
Since i is set to the intermittent reception mode of the short period T1, a smooth incoming connection can be made without causing a large connection delay.

(Other Embodiments) In the above embodiment,
When the power of the mobile communication devices PS1, PS2,... Is turned on and when the mobile communication devices PS1, PS2,.
The storage service access request signal is transmitted from 2, 2,... To the mobile communication control station CS so as to make an inquiry about the presence or absence of the stored data. .

First, the first method is that mobile communication devices PS1, P
The mobile communication control station CS automatically notifies S2,... Of the presence or absence of stored data. For example, the mobile communication control station CS periodically or at any time determines the presence or absence of stored data for each mobile communication device PS1, PS2,..., And sets the mobile communication device with stored data according to the intermittent reception mode. The message information to that effect is transmitted using the incoming control channel. At this time, transmission of the message information is performed while finding a timing at which there is no incoming call signal to be transmitted through the incoming control channel.

By doing so, the mobile communication devices PS1, P
Even if the power-on operation is not performed in S2,..., And if the data is stored in the storage service server SV, even if the storage service server SV does not return to the inside of the service area, the mobile communication control station CS indicates that the data is stored. The communication device is automatically notified. Therefore, mobile communication devices PS1, PS
The users of 2,... Can quickly know whether or not there is stored data addressed to themselves. In addition, since the notification message is transmitted upon finding a timing at which there is no incoming call signal to be transmitted by the incoming control channel, the traffic of the incoming control channel is not squeezed, thereby making it possible to transmit the original incoming signal. There is no worry about adverse effects.

As a method of notifying the message information, for example, a method of displaying a display message indicating that stored data is present on the liquid crystal display of each of the mobile communication devices PS1, PS2,... A method that combines the display of the display message with the generation of a sound or the blinking of a light emitting diode can be considered.

The second method uses mobile communication devices PS1, PS
In 2,..., A call or location registration operation is performed or an incoming call signal arrives.
When S2,... And the mobile communication control station CS are connected via the control channel, the mobile communication control station CS determines whether or not there is stored data addressed to the mobile communication device. Is to notify the mobile communication device of the message information to that effect.

In this way, the presence or absence of stored data is notified to the mobile communication device at the time of outgoing call or incoming call, so that the user can be more reliably notified of the presence of stored data. Further, the notification of the message information is performed as one of the procedures during the calling procedure, the location registration procedure, and the incoming call procedure, so that the notification of the message information does not cause the control channel traffic to be compressed.

The third method is that mobile communication devices PS1, PS
2. In 2,..., An access request signal for temporarily turning on the power at a certain time even when the power is off and using a transmission control channel to inquire whether there is stored data addressed to the time. To mobile communication control station C
S, the mobile communication control station CS, upon receiving the access request, determines the presence or absence of stored data addressed to the corresponding mobile communication device and notifies the requesting mobile communication device of message information indicating the result. is there. In this way, even if the mobile communication device has been in the power-off state for a long time, it is possible to notify the user of the mobile communication device of the existence of the stored data.

At this time, the mobile communication devices PS1, PS
.. Store the message information indicating the presence / absence of the stored data sent from the mobile communication control station CS, and until the user notices the presence of the stored message and transmits an access request for the stored data. The message information may be read out periodically and displayed on the display of the mobile communication device or output as voice. With this configuration, once the message information indicating the presence / absence of stored data sent from the mobile communication control station CS is received, the control channel is used between the mobile communication device and the mobile communication control station CS thereafter. It is not necessary to notify the user of the inquiry and the result of the inquiry, so that the traffic of the control channel does not have to be suppressed.

The present invention is not limited to the above embodiments. For example, in the above embodiment, the case where two types of intermittent reception modes are provided has been described.
More than one type may be provided to selectively set these modes.

In the above embodiment, the intermittent reception mode of the long period T2 is set in the destination mobile communication device PSi, and the incoming call requests a two-way simultaneous communication service such as a telephone or a videophone. In the above, the intermittent reception mode is changed from the long cycle T2 mode to the short cycle T1 mode, but may be temporarily changed to the continuous reception mode instead of the short cycle T1 mode. In this way, when the caller makes a call again, it is possible to immediately respond to the call.

Further, the storage service server may be provided in the mobile communication control station, and the configuration, control procedure and control contents of the mobile communication device and the mobile communication control station may be variously changed without departing from the gist of the present invention. It can be modified and implemented.

[0078]

According to the present invention as described in detail above in the present invention, movement
In the communication device, a receiving unit that selectively sets a plurality of types of intermittent reception modes having different intermittent reception periods during standby to perform an intermittent reception operation, and transfers the information about the intermittent reception mode set by the reception unit to the communication unit. In addition to the intermittent reception mode notification means for notifying the communication network,
Further means are provided. And this intermittent reception mode
By the mobile communication network by the
Receiving the change request, and following the change request,
The intermittent reception mode that is set to
The mode has been changed .

Therefore, according to the present invention, it is possible to further reduce the power consumption during standby in the mobile communication device, and to reduce unnecessary signal transmission from the mobile communication network to the standby mobile communication device to control the control channel. Mobile communication while waiting from the mobile communication network
When sending necessary signals to the equipment, large delays may occur.
Mobile communication network and mobile communication device
Connection delay between the mobile communication network and the
To reduce administrative burden and maintain serviceability for users.
It was able to provide a mobile communication system and a mobile communication network and a mobile communication device.

In another aspect of the present invention, the mobile communication network includes communication service determination means for determining the type of communication service requested by the caller when an incoming call to each of the mobile communication devices is generated, and communication control means. According to the communication control means, different incoming call processing is performed for the mobile communication device in accordance with the determination result of the communication service determination means and the intermittent reception mode being set notified from the called mobile communication device. I have to.

Therefore, according to the present invention, the power consumption during standby can be further reduced by lengthening the intermittent reception cycle, and the adverse effect on the incoming call caused by lengthening the intermittent reception cycle can be reduced. A mobile communication system capable of maintaining good serviceability, a mobile communication network thereof, and a mobile station device can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a PHS as an embodiment of a mobile communication system according to the present invention.

FIG. 2 is a diagram illustrating an example of a transmission timing of a mobile communication control station and a reception timing of each mobile communication device group in a short-cycle intermittent reception mode.

FIG. 3 is a diagram showing an example of a transmission timing of a mobile communication control station and a reception timing of each mobile communication device group in a long period intermittent reception mode.

FIG. 4 is a sequence diagram showing a control operation when the system shown in FIG. 1 receives a call;

FIG. 5 is a flowchart showing a procedure and control contents of accumulation control in a mobile communication control station.

FIG. 6 is a sequence diagram showing stored data inquiry and stored data transfer control of the system shown in FIG. 1;

FIG. 7 is a sequence diagram showing intermittent reception cycle change control of the system shown in FIG. 1;

FIG. 8 is a timing chart for explaining an example of a conventional discontinuous reception system.

[Explanation of symbols]

 NW: other communication network CS: mobile communication control station BS1, BS2, base station PS1, PS2, mobile communication device Z1, Z2, wireless zone SV: storage service server SF: superframe synchronization channel L, L1-1 L8-60: short-period subframes M1 to M8: long-period subframes F: frame synchronization channels P1 to P8: paging channel T1: first intermittent reception mode period (short period) T2: second Intermittent reception mode cycle (long cycle)

Claims (19)

(57) [Claims]
1. A mobile communication system comprising a mobile communication device and a mobile communication network accommodating the mobile communication device via a wireless channel, wherein the mobile communication device includes a plurality of intermittent intermittent reception cycles having different intermittent reception periods. Has a receiving mode,
Receiving means for selectively setting the intermittent reception mode during standby to perform an intermittent reception operation; and intermittent reception for notifying the mobile communication network of information on the intermittent reception mode being set to the receiving means. A mode notifying unit, wherein the mobile communication network includes: a communication service determining unit configured to determine a type of a communication service requested by an originating side when an incoming call to the mobile communication device occurs; A mobile communication system comprising: a communication control unit that performs an incoming call process with different contents to the mobile communication device according to a determination result and an intermittent reception mode during setting notified from the mobile communication device of the destination. .
2. The communication service determination means of a mobile communication network,
It is determined whether the calling side is requesting the two-way simultaneous communication service or the one-way communication service, and the communication control means is configured to provide the first mobile communication device with the intermittent reception period longer than the predetermined period to the called mobile communication device. It is determined whether the intermittent reception mode is set or the second intermittent reception mode shorter than the predetermined period is set. In the state where the first intermittent reception mode is set, the one-way communication service 2. The mobile communication system according to claim 1, wherein when an incoming call requesting a call arrives, received data associated with the incoming call is stored in a storage unit.
3. The mobile communication device according to at least one of when the power is turned on and when the mobile communication device returns to the service area of the mobile communication network, stores the data in the mobile communication network addressed to the mobile communication device. When an inquiry about the presence or absence of stored data arrives from the mobile communication device, the communication control means of the mobile communication network determines the presence or absence of the corresponding stored data, and determines the determination result as the mobile communication source of the inquiry source. The mobile communication system according to claim 2, wherein the mobile communication system transmits the information to a device.
4. The communication control means of the mobile communication network determines presence / absence of stored data for each mobile communication device, determines presence / absence of valid control information to be transmitted to all mobile communication devices, and 3. The mobile communication system according to claim 2, wherein when there is no such control information, information representing a determination result of the presence / absence of the stored data is notified to each mobile communication device instead of the control information.
5. The communication control means of the mobile communication network, when at least one of a call request signal and a location registration request signal arrives from the mobile communication device, or when an incoming call to the mobile communication device is received. 3. The mobile communication system according to claim 2, wherein when the mobile communication device arrives, the presence or absence of stored data addressed to the mobile communication device is determined, and information indicating the determination result is notified to the mobile communication device.
6. The mobile communication device inquires of the mobile communication network whether there is stored data addressed to the mobile communication device in synchronization with a period of the intermittent reception mode being set or a timing generated based on the period. The communication control means of the communication network determines the presence or absence of the corresponding stored data when the inquiry about the presence or absence of the stored data arrives from the mobile communication device, and notifies information indicating the determination result to the mobile communication device of the inquiry source. The mobile communication system according to claim 2, wherein:
7. The mobile communication device has a clock function, and inquires of the mobile communication network at predetermined time intervals as to whether or not there is stored data addressed to the mobile device, in accordance with the clock data of the clock function. The communication control means determines whether or not there is stored data when an inquiry about the presence or absence of stored data arrives from the mobile communication device, and notifies information indicating the determination result to the mobile communication device of the inquiry source. The mobile communication system according to claim 2, wherein
8. The communication control means identifies an intermittent reception period of the mobile communication device based on information on the intermittent reception mode notified from the mobile communication device, and determines whether there is stored data addressed to the mobile communication device. The mobile communication system according to any one of claims 3 to 7, wherein the information indicating the transmission is transmitted during the intermittent reception period.
9. The mobile communication device, when information indicating a determination result of presence / absence of stored data addressed to the mobile communication device is transmitted from the mobile communication network, transmits the information to a visual notification unit, an auditory notification unit, and a tactile notification. The mobile communication system according to any one of claims 3 to 8, further comprising means for notifying a user using at least one of the means.
10. A mobile communication system comprising a mobile communication device and a mobile communication network accommodating the mobile communication device via a wireless channel, wherein the mobile communication device includes a plurality of intermittent intermittent reception periods different from each other. Has a receiving mode,
Receiving means for selectively setting these intermittent reception modes during standby to perform an intermittent reception operation; and intermittent reception for notifying the mobile communication network of information about the set intermittent reception mode to the receiving means. A mode notifying unit, wherein the mobile communication network includes: a communication service determining unit configured to determine a type of a communication service requested by an originating side when an incoming call to the mobile communication device occurs; According to the determination result and the intermittent reception mode being set which is notified from the destination mobile communication device, information instructing the mobile communication device to change the intermittent reception mode is transmitted during the intermittent reception period of the mobile communication device. A mobile communication system comprising communication control means.
11. The communication service determining means of the mobile communication network determines whether the calling side requests the two-way simultaneous communication service or the one-way communication service, and the communication control means determines the destination of the call. It is determined whether the first intermittent reception mode in which the intermittent reception cycle is longer than a predetermined cycle or the second intermittent reception mode shorter than the predetermined cycle is set in the mobile communication device, and the first intermittent reception is determined. When an incoming call requesting the two-way simultaneous communication service arrives from the calling side in a state where the mode is set, the intermittent reception mode is changed to the second intermittent reception mode by the called mobile communication device. 11. The mobile communication system according to claim 10, wherein instruction information for transmitting is transmitted.
12. The communication control means, wherein a first intermittent reception mode in which the intermittent reception cycle is longer than a predetermined cycle is set in the called mobile communication device, or a second intermittent reception mode in which the intermittent reception cycle is shorter than the predetermined cycle is set. In the state where the first intermittent reception mode is set, if an incoming call requesting a two-way simultaneous communication service arrives from the calling side while the first intermittent reception mode is set, 11. The mobile communication system according to claim 10, wherein instruction information for changing the receiving unit to the continuous reception mode at least during a predetermined time is transmitted.
13. When an incoming call requesting a two-way simultaneous communication service arrives from a caller in a state where the first intermittent reception mode is set, the communication control means resets the incoming call to an incomplete call. And a function of notifying the information to that effect to the called mobile communication device during the intermittent reception period.
3. The mobile communication system according to 2.
14. An incompletion call, when an incoming call requesting a two-way simultaneous communication service arrives from a caller in a state where the first intermittent reception mode is set, the communication control means performs an incomplete call. 13. The mobile communication system according to claim 11, further comprising a function of transmitting a message requesting a re-call to the calling side while processing as a request.
15. An intermittent reception mode having a plurality of types of intermittent reception modes having different intermittent reception periods, performing an intermittent reception operation by selectively setting these intermittent reception modes during standby, and intermittent reception mode during the setting. In a mobile communication network that performs wireless communication with a mobile communication device having a function of transmitting information about the mobile communication device, whether an originating side requests a two-way simultaneous communication service when an incoming call to the mobile communication device occurs. A communication service determination unit for determining whether a one-way communication service is requested; and a discontinuous reception cycle specified to the mobile communication device based on information on the discontinuous reception mode notified from the called mobile communication device. The intermittent reception mode for determining whether the first intermittent reception mode longer than the period is set or the second intermittent reception mode shorter than the predetermined period is set. And an incoming call requesting a one-way communication service from the calling side while the first intermittent reception mode is set, storing received data associated with the incoming call in the storage means. A mobile communication network, comprising:
16. An intermittent reception mode having a plurality of types of intermittent reception modes having different intermittent reception periods, performing an intermittent reception operation by selectively setting these intermittent reception modes during standby, and intermittent reception mode during the setting. In a mobile communication network that performs wireless communication with a mobile communication device having a function of transmitting information about the mobile communication device, whether an originating side requests a two-way simultaneous communication service when an incoming call to the mobile communication device occurs. A communication service determination unit for determining whether a one-way communication service is requested; and a discontinuous reception cycle specified to the mobile communication device based on information on the discontinuous reception mode notified from the called mobile communication device. The intermittent reception mode for determining whether the first intermittent reception mode longer than the period is set or the second intermittent reception mode shorter than the predetermined period is set. When the incoming call requesting the two-way simultaneous communication service arrives from the calling side while the first intermittent reception mode is set, the intermittent reception mode is transmitted to the called mobile communication device. A mobile communication network, comprising communication control means for transmitting instruction information for changing the communication mode to the second intermittent reception mode.
17. A mobile communication device capable of supporting both a two-way simultaneous communication service and a one-way communication service, comprising a plurality of types of intermittent reception modes having different intermittent reception periods,
Receiving means for selectively setting these intermittent reception modes during standby to perform intermittent reception operation, and service designating means for allowing a user to selectively designate and input the two-way simultaneous communication service and the one-way communication service And intermittent reception mode setting control means for setting the reception means to an optimal intermittent reception mode corresponding to the designated and input service in response to a communication service designation input operation in the service designation means. Mobile communication device.
18. A mobile communication device connected to a mobile communication network having a function of notifying a mobile communication device of information indicating a communication service requested by a call originating side in a call receiving process, wherein a plurality of types of intermittent reception cycles having different intermittent reception periods are provided. Has a receiving mode,
Receiving means for selectively setting these intermittent reception modes during standby to perform an intermittent reception operation, and an optimum communication service corresponding to the communication service according to information indicating the communication service notified from the mobile communication network. A mobile communication device, comprising: intermittent reception mode setting control means for causing the reception means to set an intermittent reception mode.
19. The mobile communication apparatus according to claim 17, further comprising means for displaying information indicating the intermittent reception mode being set on the reception means.
JP23661595A 1995-09-14 1995-09-14 Mobile communication system, mobile communication network and mobile communication device used in this system Expired - Fee Related JP3270306B2 (en)

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US08/710,107 US6006101A (en) 1995-09-14 1996-09-12 Mobile radio communication system, a mobile radio communication network and a mobile radio station in said mobile radio communication system
EP96306695A EP0763957A3 (en) 1995-09-14 1996-09-16 A mobile radio communication system, a mobile radio communication network and a mobile radio station in said mobile radio communication system

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EP0763957A2 (en) 1997-03-19
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JPH0983427A (en) 1997-03-28

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